Indeed. Mojang got the message and gave us the 256 build limit.
I've yet to build anything that uses the full height.
I'm working on a project that does. It's an underground world where sea level is at layer 192 and everything below is continuously generated giant caves. We will be launching in a couple weeks.
Check out the test world: 18.104.22.168
Ok, I'll check tonight (currently its 12:30)
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